问题
___ comes to saving energy, bigchanges start with small steps, like turning off the lights
A:whether
B:that
C:what
D:why
B:that
C:what
D:why
正确答案是：
同类题型
I wonder ______you’ll water this kind of flower —Every other day
Mr. Wang,would you please____our class meeting this Wednesday?[ ]
Even the best writers sometimes find themselves _____ for words [ ]
What can I do for you?– If you __________ see Mr. Smith, give him my regards.
Even today I still remember the great funwe had____games on the beach on those happy days．